Ventilating device.



No. 787,997. PATENTED APR. 25, 1905] R. TAYLOR @577. G. GREAMER.

VENTILATING DEVICE.

APPLIOATION FILED AUG 10, 1904.

MW 713.60% v I ATENT FFICE.

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ROSS TAYLOR AND \VILLIAM G. OREAMER, OF NEW YORK, N. Y., AS- SIHNORS TO AUTOMATIC VENTILATOR COMPANY, OF NEW YOhlsI, N. Y., A (.OBPORATION OF NEW YORK.

VENTILATING DEVICE.

SPECIFICATION formlng part of Letters Patent No. 787,997, dated April 25, 1905. Application filed August 10.1904. Serial No. 220,223.

1'0 [it I J (OW/87%: an end view similar to Fig. 3 with the box- Be it known that we, Ross TAYLOR and W'IL- casting partially broken away to expose the 5 LIAM G. CREAMER, citizens of the United l relation between the plate or door and the States, residing at New York city. in the spring for retaining it in adjusted positions.

county of New York and State of New York, Similar refercnce-numerals indicate like haveinventedcertain new and useful lmprovci parts in the several ligures of the drawings. mentsin Ventilating Devices; and we doherel is the open diffusion-box, made of cast bydeclare the following to be a full, clear, and metal and formed with a flange 2 of any orexactdescription of theinvention. such as will namental design and provided with suitable I0 enable others skilled in the art to which it apscrew-holes 3, through which screws may pertains to make and use the same. pass for securing the box in position within Ourinvention relates to certain new and use- 5 the wall of the car or other compartment. ful improvements in ventilating devices for 4 is a plate or door formed with returned railromi-cars and other c mipartments, and ends 5 and adapted to be pivotally connected 5 particularly to that class shown and described at the lower corners, as shown at (i, with the in Letters Patent No. 755,:t85, granted March end portions of the diffusion-box l. 22, 190*. l The edge of one of the returned ends of the In the class referred to an outside deflector i plate or door t is formed with a series of reis arranged between two adjacent passagecesses or (.lepressions 7, adapted to receive a 20 ways through the wall or roof of the car which i projection 8 near the free end of a Hat spring are provided with diffusion-boxes having loul 9, the opposite end of which is secured by a vers therein and an interior adjustable plate rivet 10 to the upper portion of the diffusion- 7 or door for controlling the ingoing and outi box. -The relation between the spring and going currents of air induced by the exterior I the plate or door enables the latter to be held l 25 deflector. all as fully set forth in the Letters in adjusted open positions to control the dilatent referred to. rection of the ingoing and outgoing currents Our present invention relates to certain ofair and to hold it also in closed position novel features of construction of the louvers when it is desired. ll is a suitable lug or and in providing means for securing the inhandle by means of which theadjustablc plate 3 terior adjustable plate or door in any desired or door is manipulated.

position. The spring 9 prevents the plate or door \l'ith these ends in view our invention confrom accidentally swinging upon its pivot 0 sistsinthe details of construction and arrangeunder the jarring or vibration which necesment of parts hereinafter more fullyset forth. sarily occurs.

in order that those skilled in theart to which \Vithiu the diffusion-box are arranged a seour invention appertains may know how to rics of louvers 12, which serve to divide and make and use the same and fully appreciate direct the currents of air. These louvers are 5 its advantages, we willproceed to describe the composed of sheet metal and consist of an same, referring by numerals to the accomoutside piece 13, bent into rectangular form 4 panying drawings, in whichi and with its upper returned ends secured by Figure 1 is a front perspective view of a rivets Ill to the diffusion-box l, and 15 desigdiffusion-box with ouriniprovenients attached nates parallel pieces of sheet metal having thereto. Fig. 2 is a rear perspective view. l their ends bent at a right angle and secured Fig. 3 is an end view with the plate or door i by rivets 16 to theend portions of the part 45 in its extreme open position. Fig. a is a veri 13, all as clearly shown. The proportions of tical section taken on the line 1/ a of Fig. 2. these louvers relatively to the diffusion-box I Fig. 5 is a perspective view of the louvers rei are such that a space occurs at each end bemoved from the diffusion-box, and Fig. 6 is l tween the louvers and the end of the diffusionbox in order that the returned ends of the plate or door 4: may be free to vibrate therein.

From the construction shown and described it will be readily appreciated that we are enabled to produce our improved device with great economy and that when in position the air-currents may be readily controlled and maintained by the adjustment of the vibrating plates or doors t.

When a car supplied with ventilating devices of the type described is in motion, the plates or doors of the diffusion-boxes in front of the exterior deflectors are opened to such an extent as to cause the ingoing currents of air to be deflected upward and toward the l roof, and the plates or doors of the diffusionboxes on the opposite sides of the outside deflectors are preferably turned to their lowermost position in order that the outgoing currents induced by the partial vacuum occuring on the rear side of the outside deflectors will travel in a plane below that at which the ingoing currents enter the car, thus effectually separating the fresh and vitiated air and avoiding all disagreeable drafts upon the passengers.

Having described the construction, operation, and advantages of our improved ventilating device, what we claim as new, and del sire to secure by Letters Patent, isi 1. The diffusion-box I adapted to be secured l wall or other part of a car, 1 with an interior plate or door having a flange and in position within the in combination having returned ends pivotally connected at its lower portion to the box, and with a series of recesses or depressions in the edge of one of said ends; and a flat metal spring with one end secured to the upper portion of the box, and its free end provided with a projection adapted to cooperate with the recesses or depressions in the end portion of the plate or door, substantially as and for the purposes set forth.

2. In a diffusion-box such as described, in combination with the box, vibrating plate or door, and spring for holding the latter in adjusted positions, louvers arranged within the box and terminating away from the ends of the diffusion-box, whereby a space is provided for the ends of the vibrative plate or door, substantially as hereinbefore set forth.

3. In a diffusionbox such as described, louvers secured therein and consisting of an outer rectangular frame secured at its upper end to the difiusion-box, and parallel strips with returned ends attached to the ends of the rectangular frame portion, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

ROSS TAYLOR. WILLIAM G. CREAMER.

l/Vitnesses:

FREDK. (J. BIERMANN, H. B. FRANK.

longitudinally in a plane 

